#include "reg52.h" 
#include "intrins.h"
#include "KEY4.h"

#ifndef uchar
#define uchar unsigned char
#endif
#ifndef uint
#define uint unsigned int
#endif
#ifndef ulong
#define ulong unsigned long
#endif   

//sbit led=P2^0;

void main()
{
	int key;
  while(1)
	{
		key=Key4();
	}
}
